I saw this ant-like insect in Brazil, close to Rio de Janeiro. It was around 2 cm long. I tried to use google's search by image, but no luck. Does any one know the name of the species?
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$\begingroup$ I would have though a Polyrhachis is you had found it in Australia but they don't seem to exist in Brazil. Here is the list of ant species living in Brazil. $\endgroup$ – Remi.b Mar 18 '18 at 22:11
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$\begingroup$ Its not an ant. $\endgroup$ – Karl Kjer Mar 19 '18 at 9:58
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$\begingroup$ Possibly Mutillidae or a related family? (but beyond that I have no clue). $\endgroup$ – Arthur J Frost Mar 19 '18 at 16:20
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Insects like this are commonly called "velvet ants", but they are wasps, not ants. This insect is in the family Mutillidae, and it's called Hopolocrates cephalotes. (https://www.inaturalist.org/taxa/629302-Hoplocrates-cephalotes/browse_photos)
